LGMT434 Masthead Repeater Installation Handbook
Page 6.
CODE AND FUNCTION SWITCHES.
There are sixteen switches which have the following functions.
SWITCHES 1-5
Site Codes
SWITCHES 6-8
Sub Net Code A
SWITCHES 9-11 Sub Net Code B
SWITCHES 12-16 Special functions
SITE
codes separates one site from another. There are 32 site codes to choose from
and it is recommended that each new installation should be set to a different site code.
The site code can also be used to identify the installation. EG: (14) EZ Car Rentals.
All the detectors on the system must have the same site code. The masthead and any
repeaters must also have the same site code. If a pager is to be used, then that must
also have the same site code.
When initially installing the system or when carrying out a maintenance check, type the
site code number into the Walk Test Indicator.
SUB NET
codes divide the site up into sections and are only needed if one or more
repeaters are used. If there are no repeaters, leave the sub net codes at 1. All PIR’s
and repeaters on the site are set to the same SITE code but will only communicate with a
masthead or repeater which has the same sub net code. Distant PIR’s will need to rout
through one or more repeaters. Those PIR’s must send the sub net code that has been
set on the nearest repeater. That repeater then sends the sub net code of the next re-
peater or masthead if it is next in line.
The Masthead has two Sub Net Code settings. A & B. As a Masthead, only the
RECEIVE switches (A) are applicable. If the unit is configured as a repeater, then the
SEND switches (B) also apply.
Pagers and Walk Test Instruments do not have Sub Net Codes and will respond to the
Masthead and any repeaters as long as they are the same Site Code. ( See separate
Walk Test & Pager Instructions). Up to seven repeaters and one masthead may be
deployed.
ON
1 2 3 4 5
ON
6 7 8 9 10 11
ON
12 13 14 15 16
